/* roulang page: index */
:root{
  --p1:#0B1B33;
  --p2:#0E4B5A;
  --p3:#147C7A;
  --neon:#00E5CC;
  --gold:#FFB547;
  --bg-light:#F7F9FC;
  --bg-sub:#F0F4F8;
  --bg-dark:#0A0E17;
  --txt:#13293D;
  --txt2:#5A6B7B;
  --txt3:#A0AAB5;
  --txt-dark:#E8F3F3;
  --txt-dark2:#7C8EA0;
  --border:#E2E8F0;
  --border-dark:rgba(0,229,204,0.18);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 10px 30px rgba(11,27,51,0.08);
  --shadow-hover:0 16px 40px rgba(11,27,51,0.14);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--bg-light);color:var(--txt);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:96px 0}
.section-sub{padding:64px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--r-sm);padding:14px 32px;font-size:16px;cursor:pointer;border:2px solid transparent;transition:all .2s ease;min-height:48px;letter-spacing:.5px}
.btn-gold{background:var(--gold);color:var(--p1);border-color:var(--gold)}
.btn-gold:hover{background:#FF9500;border-color:#FF9500;box-shadow:0 0 18px rgba(255,181,71,.45);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--neon);border-color:var(--neon)}
.btn-outline:hover{background:rgba(0,229,204,.08);box-shadow:0 0 14px rgba(0,229,204,.2)}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--neon);outline-offset:3px}
.tag{display:inline-block;background:rgba(0,229,204,.1);color:var(--p3);font-size:13px;font-weight:600;border:1px solid rgba(0,229,204,.3);border-radius:999px;padding:4px 14px;letter-spacing:.5px}
.section-label{display:inline-block;background:rgba(0,229,204,.1);color:var(--p3);font-size:12px;font-weight:600;border:1px solid rgba(0,229,204,.3);border-radius:999px;padding:4px 14px;letter-spacing:.5px;margin-bottom:16px}
.section-head{text-align:center;margin-bottom:56px}
.section-head h2{font-size:36px;font-weight:700;color:var(--txt);line-height:1.2;letter-spacing:-.5px}
.section-head p{color:var(--txt2);font-size:16px;margin-top:12px;max-width:680px;margin-left:auto;margin-right:auto}
/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;background:rgba(10,14,23,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(229,255,250,.08)}
.site-header.scrolled{background:rgba(10,14,23,.96)}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(1240px,92%);margin:0 auto}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--neon),var(--p3));display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--p1);font-weight:700;box-shadow:0 0 18px rgba(0,229,204,.3)}
.logo-text{font-size:20px;font-weight:700;color:#fff;letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-link{color:rgba(232,243,243,.85);font-size:15px;padding:10px 18px;border-radius:10px;font-weight:500;position:relative;transition:color .2s}
.nav-link:hover{color:var(--neon);text-shadow:0 0 12px rgba(0,229,204,.4)}
.nav-link.active{color:var(--neon)}
.nav-link.active::after{content:'';position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);width:24px;height:3px;background:var(--neon);border-radius:2px;box-shadow:0 0 10px rgba(0,229,204,.6)}
.nav-cta{background:var(--gold);color:var(--p1);border-radius:12px;padding:10px 24px;font-weight:700;font-size:15px;transition:all .2s;flex-shrink:0}
.nav-cta:hover{background:#FF9500;box-shadow:0 0 16px rgba(255,181,71,.4)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:1102}
.hamburger span{display:block;width:26px;height:2px;background:var(--neon);border-radius:2px;transition:all .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-overlay{display:none;position:fixed;inset:0;background:rgba(10,14,23,.97);z-index:1100;flex-direction:column;align-items:center;justify-content:center;gap:8px}
.mobile-overlay.open{display:flex}
.mobile-overlay .mobile-link{color:#fff;font-size:24px;font-weight:600;padding:16px;transition:color .2s}
.mobile-overlay .mobile-link:hover,.mobile-overlay .mobile-link.active{color:var(--neon);text-decoration:underline;text-decoration-color:var(--neon);text-underline-offset:8px}
.mobile-overlay .mobile-cta{margin-top:24px;background:var(--gold);color:var(--p1);padding:14px 40px;border-radius:12px;font-weight:700;font-size:18px}
.mobile-overlay .mobile-note{margin-top:32px;color:var(--txt-dark2);font-size:14px}
/* ===== Hero ===== */
.hero{min-height:720px;background:linear-gradient(135deg,#0B1B33 0%,#0E4B5A 50%,#147C7A 100%);display:flex;align-items:center;position:relative;overflow:hidden;padding:120px 0 80px}
.hero::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.25;mix-blend-mode:screen}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,14,23,.7) 0%,rgba(10,14,23,.3) 60%,rgba(20,124,122,.2) 100%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:3fr 2fr;gap:64px;align-items:center;width:min(1240px,92%);margin:0 auto}
.hero-content{color:#fff}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,204,.12);border:1px solid rgba(0,229,204,.3);border-radius:999px;padding:6px 18px;font-size:13px;color:var(--neon);font-weight:600;letter-spacing:.5px;margin-bottom:24px}
.hero-tag i{font-size:12px}
.hero-title{font-size:clamp(2.6rem,5vw,4.2rem);font-weight:700;line-height:1.15;letter-spacing:-1px;margin-bottom:24px;background:linear-gradient(120deg,#fff 30%,#a0f0e8 70%,var(--neon));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:18px;line-height:1.7;color:rgba(232,243,243,.9);max-width:560px;margin-bottom:36px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-data{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.data-card{background:rgba(11,27,51,.6);border:1px solid rgba(0,229,204,.15);border-radius:var(--r-md);padding:20px 18px;backdrop-filter:blur(8px);transition:all .3s}
.data-card:hover{border-color:var(--neon);box-shadow:0 0 24px rgba(0,229,204,.12);transform:translateY(-4px)}
.data-label{font-size:12px;color:var(--neon);font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:8px;font-family:var(--font-num)}
.data-value{font-size:42px;font-weight:700;color:var(--gold);font-family:var(--font-num);line-height:1.1}
.data-text{font-size:13px;color:#B8C7D1;margin-top:6px;font-weight:500}
.trust-bar{position:relative;z-index:2;border-top:1px solid rgba(229,255,250,.12);margin-top:80px;padding-top:24px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center;width:min(1240px,92%);margin-left:auto;margin-right:auto}
.trust-item{display:flex;align-items:center;gap:8px;color:rgba(232,243,243,.65);font-size:14px}
.trust-item i{color:var(--neon)}
/* ===== Steps ===== */
.steps-section{background:var(--bg-light);padding:96px 0 72px}
.steps-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;position:relative}
.step-card{background:#fff;border-radius:var(--r-lg);padding:36px 32px;border:1px solid var(--border);box-shadow:var(--shadow-card);position:relative;transition:all .3s}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-card.featured{background:linear-gradient(145deg,#0B1B33,#0E4B5A);border-color:rgba(0,229,204,.2);box-shadow:0 16px 40px rgba(11,27,51,.18);transform:scale(1.03);z-index:2}
.step-card.featured:hover{transform:scale(1.03) translateY(-6px)}
.step-card.featured::before{content:'特选';position:absolute;top:16px;right:-8px;background:var(--gold);color:var(--p1);font-size:12px;font-weight:700;padding:4px 14px;border-radius:999px;letter-spacing:.5px;box-shadow:0 4px 12px rgba(255,181,71,.35)}
.step-card.featured .step-name,.step-card.featured .step-desc{color:#fff}
.step-card.featured .step-list li{color:rgba(232,243,243,.85)}
.step-card.featured .step-link{color:var(--neon)}
.step-num{font-family:var(--font-num);font-size:14px;color:var(--txt3);font-weight:600;letter-spacing:2px;margin-bottom:16px}
.step-name{font-size:22px;font-weight:700;color:var(--txt);margin-bottom:12px}
.step-desc{font-size:15px;color:var(--txt2);line-height:1.7;margin-bottom:20px}
.step-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--txt2);margin-bottom:10px;line-height:1.6}
.step-list li i{color:var(--neon);font-size:14px;margin-top:4px}
.step-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--p3);margin-top:16px;transition:gap .2s}
.step-link:hover{gap:10px;color:var(--p2)}
/* ===== Pricing ===== */
.pricing-section{background:var(--bg-sub);padding:96px 0}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:40px 32px;display:flex;flex-direction:column;transition:all .3s;position:relative}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.price-card.featured{background:linear-gradient(160deg,#0B1B33,#0E4B5A 55%,#147C7A);border:2px solid var(--neon);box-shadow:0 0 40px rgba(0,229,204,.18);z-index:2}
.price-card.featured::before{content:'最受欢迎';position:absolute;top:18px;right:-12px;background:var(--gold);color:var(--p1);font-size:13px;font-weight:700;padding:6px 20px;border-radius:999px;box-shadow:0 6px 20px rgba(255,181,71,.4);letter-spacing:.5px}
.price-name{font-size:18px;font-weight:700;color:var(--txt);margin-bottom:8px}
.price-card.featured .price-name{color:#fff}
.price-desc{font-size:14px;color:var(--txt2);margin-bottom:24px;line-height:1.6}
.price-card.featured .price-desc{color:rgba(232,243,243,.8)}
.price-amount{display:flex;align-items:baseline;gap:4px;margin-bottom:4px}
.price-amount .currency{font-size:20px;font-weight:600;color:var(--txt);font-family:var(--font-num)}
.price-card.featured .price-amount .currency{color:#fff}
.price-amount .num{font-size:44px;font-weight:700;color:var(--txt);font-family:var(--font-num);line-height:1}
.price-card.featured .price-amount .num{color:var(--gold)}
.price-amount .period{font-size:14px;color:var(--txt2);font-family:var(--font-main)}
.price-card.featured .price-amount .period{color:var(--txt-dark2)}
.price-features{flex:1;margin-top:24px;border-top:1px dashed var(--border);padding-top:20px}
.price-card.featured .price-features{border-color:rgba(0,229,204,.2)}
.price-features li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--txt2);margin-bottom:10px;line-height:1.6}
.price-card.featured .price-features li{color:rgba(232,243,243,.85)}
.price-features li i{font-size:13px;margin-top:5px}
.price-features li .fa-check{color:var(--neon)}
.price-features li .fa-xmark{color:#A0AAB5}
.price-cta{margin-top:28px;width:100%}
.price-card.featured .price-cta{background:var(--gold);color:var(--p1);border-color:var(--gold)}
.price-card.featured .price-cta:hover{background:#FF9500;box-shadow:0 0 18px rgba(255,181,71,.5)}
/* ===== News ===== */
.news-section{background:var(--bg-light);padding:96px 0}
.news-layout{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.news-list{border-top:1px solid var(--border)}
.news-row{display:grid;grid-template-columns:auto 1fr auto;grid-template-areas:"cat title arrow" "cat summary arrow" "cat date arrow";gap:4px 20px;padding:24px 16px;border-bottom:1px solid var(--border);align-items:center;position:relative;transition:background .2s;border-radius:12px}
.news-row:hover{background:#EFFAF8}
.news-row:hover .news-title{color:var(--p3)}
.news-row:hover .news-arrow{transform:translateX(6px);color:var(--neon)}
.news-row::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;background:var(--neon);border-radius:2px;transition:height .2s}
.news-row:hover::before{height:60%}
.news-cat{grid-area:cat;font-size:12px;font-weight:600;background:rgba(0,229,204,.1);color:var(--p3);border:1px solid rgba(0,229,204,.3);border-radius:999px;padding:3px 12px;white-space:nowrap}
.news-title{grid-area:title;font-size:17px;font-weight:600;color:var(--txt);transition:color .2s}
.news-summary{grid-area:summary;font-size:14px;color:var(--txt2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-date{grid-area:date;font-size:14px;color:var(--txt3);font-family:var(--font-num)}
.news-arrow{grid-area:arrow;color:var(--txt3);font-size:18px;transition:all .2s}
.news-empty{background:var(--bg-sub);border:2px dashed var(--border);border-radius:var(--r-md);padding:48px;text-align:center;color:var(--txt2);font-size:15px}
.news-cover-wrap{display:grid;gap:16px}
.news-cover{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s}
.news-cover:hover img{transform:scale(1.04)}
.news-cover-caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(10,14,23,.8));color:#fff;font-size:14px;padding:32px 20px 14px;font-weight:500}
/* ===== Promo Banner ===== */
.promo-section{background:var(--bg-dark);padding:72px 0;position:relative;overflow:hidden}
.promo-section::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.2}
.promo-section::after{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,14,23,.9) 40%,rgba(14,75,90,.6))}
.promo-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr auto;gap:48px;align-items:center;width:min(1240px,92%);margin:0 auto}
.promo-content{color:#fff}
.promo-tag{display:inline-block;background:rgba(255,181,71,.15);border:1px solid rgba(255,181,71,.4);color:var(--gold);font-size:13px;padding:5px 16px;border-radius:999px;font-weight:600;margin-bottom:20px}
.promo-title{font-size:32px;font-weight:700;line-height:1.3;margin-bottom:16px}
.promo-desc{font-size:15px;color:rgba(232,243,243,.85);max-width:560px;line-height:1.7;margin-bottom:24px}
.countdown{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.countdown-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,181,71,.3);border-radius:12px;padding:12px 16px;min-width:76px;text-align:center}
.countdown-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--gold);line-height:1}
.countdown-label{font-size:12px;color:rgba(232,243,243,.7);margin-top:6px;display:block}
.promo-meta{display:flex;gap:24px;margin-top:16px;flex-wrap:wrap}
.promo-meta-item{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(232,243,243,.7)}
.promo-meta-item i{color:var(--gold)}
.promo-cta{background:var(--gold);color:var(--p1);font-weight:700;border-radius:12px;padding:16px 40px;font-size:16px;transition:all .2s;white-space:nowrap}
.promo-cta:hover{background:#FF9500;box-shadow:0 0 24px rgba(255,181,71,.5);transform:translateY(-2px)}
/* ===== FAQ ===== */
.faq-section{background:var(--bg-dark);padding:96px 0}
.faq-section .section-head h2{color:#fff}
.faq-section .section-head p{color:var(--txt-dark2)}
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:rgba(255,255,255,.03);border:1px solid rgba(229,255,250,.08);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .3s}
.faq-item.open{border-color:var(--neon);box-shadow:0 0 20px rgba(0,229,204,.08)}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;cursor:pointer;color:#fff;font-size:16px;font-weight:600;transition:color .2s;user-select:none}
.faq-question:hover{color:var(--neon)}
.faq-question .faq-icon{width:28px;height:28px;border:1px solid rgba(0,229,204,.4);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--neon);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;font-size:15px;color:#B8C7D1;line-height:1.7}
.faq-answer-inner{padding:0 24px 24px}
.faq-item.open .faq-answer{max-height:500px}
/* ===== Contact ===== */
.contact-section{background:linear-gradient(135deg,#0B1B33,#0E4B5A,#147C7A);padding:96px 0;position:relative}
.contact-section .section-head h2{color:#fff}
.contact-section .section-head p{color:rgba(232,243,243,.8)}
.contact-card{background:#fff;border-radius:var(--r-lg);max-width:720px;margin:0 auto;padding:48px;box-shadow:0 30px 60px rgba(10,14,23,.3)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group.full{grid-column:1/-1}
.form-label{font-size:14px;font-weight:600;color:var(--txt)}
.form-input,.form-select,.form-textarea{border:1px solid var(--border);background:var(--bg-light);border-radius:var(--r-sm);padding:14px 16px;font-size:15px;color:var(--txt);transition:border .2s,box-shadow .2s;outline:none}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--neon);box-shadow:0 0 0 4px rgba(0,229,204,.18)}
.form-textarea{resize:vertical;min-height:120px}
.form-submit{width:100%;margin-top:8px}
.form-note{font-size:13px;color:var(--txt3);text-align:center;margin-top:16px}
/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);padding:64px 0 0;border-top:1px solid rgba(229,255,250,.06)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr 1fr;gap:40px;padding-bottom:48px;width:min(1240px,92%);margin:0 auto}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--txt-dark2);line-height:1.7;max-width:340px}
.footer-col h4{font-size:16px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--txt-dark2);transition:color .2s}
.footer-col ul a:hover{color:var(--neon)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--txt-dark2);margin-bottom:12px;line-height:1.6}
.footer-contact li i{color:var(--neon);margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:var(--txt-dark2)}
.footer-bottom a{color:var(--txt-dark2)}
.footer-bottom a:hover{color:var(--neon)}
/* ===== Scrollbar ===== */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg-sub)}
::-webkit-scrollbar-thumb{background:var(--p3);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:var(--p2)}
/* ===== Responsive ===== */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-data{grid-template-columns:repeat(4,1fr)}
  .promo-inner{grid-template-columns:1fr;gap:32px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .nav-links{display:none}
  .nav-cta{display:none}
  .hamburger{display:flex}
  .steps-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .step-card.featured{transform:none}
  .step-card.featured:hover{transform:translateY(-6px)}
  .pricing-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .price-card.featured{order:-1}
  .news-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-head h2{font-size:28px}
  .hero{min-height:auto;padding:100px 0 56px}
  .hero-data{grid-template-columns:1fr 1fr}
  .trust-bar{justify-content:center;gap:12px}
  .trust-item{font-size:13px}
  .price-amount .num{font-size:36px}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .promo-title{font-size:24px}
}
@media (max-width:575px){
  .hero-title{font-size:2rem}
  .hero-subtitle{font-size:16px}
  .hero-actions{flex-direction:column}
  .btn{width:100%}
  .data-card{padding:16px}
  .data-value{font-size:32px}
  .news-row{grid-template-columns:1fr auto;grid-template-areas:"cat arrow" "title arrow" "summary arrow" "date arrow";gap:6px}
  .news-summary{white-space:normal}
  .contact-card{padding:32px 20px}
}

/* roulang page: category1 */
:root {
  --primary-dark: #0B1B33;
  --primary-mid: #0E4B5A;
  --primary-teal: #147C7A;
  --accent-cyan: #00E5CC;
  --accent-gold: #FFB547;
  --bg-light: #F7F9FC;
  --bg-section: #F0F4F8;
  --bg-dark: #0A0E17;
  --text-main: #13293D;
  --text-muted: #5A6B7B;
  --text-weak: #A0AAB5;
  --text-on-dark: #E8F3F3;
  --text-dark-muted: #7C8EA0;
  --border-light: #E2E8F0;
  --border-dark: rgba(0,229,204,0.18);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 10px 30px rgba(11,27,51,0.08);
  --shadow-hover: 0 16px 40px rgba(11,27,51,0.14);
  --shadow-dark: 0 20px 48px rgba(0,0,0,0.35);
  --space-section: 96px;
  --font-main: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num: "DIN Alternate","Roboto Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--bg-light);color:var(--text-main);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--text-main);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-cyan)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:var(--space-section) 0}
.text-gold{color:var(--accent-gold)}
.badge{display:inline-block;padding:4px 14px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.5px;line-height:1.4}
.badge-cyan{color:var(--accent-cyan);border:1px solid rgba(0,229,204,.4);background:rgba(0,229,204,.08)}
.badge-gold{color:var(--accent-gold);border:1px solid rgba(255,181,71,.4);background:rgba(255,181,71,.1)}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:100;background:var(--bg-dark);border-bottom:1px solid var(--border-dark)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text-on-dark);font-weight:700;font-size:1.15rem;white-space:nowrap}
.logo-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary-teal),var(--accent-cyan));display:flex;align-items:center;justify-content:center;color:var(--bg-dark);font-size:1rem;box-shadow:0 0 14px rgba(0,229,204,.4)}
.logo-text{font-size:1.05rem;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:8px;margin:0 auto}
.nav-link{display:inline-block;padding:8px 18px;border-radius:10px;color:var(--text-on-dark);font-size:15px;font-weight:500;position:relative;transition:color .2s,background .2s}
.nav-link:hover{color:var(--accent-cyan)}
.nav-link.active{color:var(--accent-cyan);text-shadow:0 0 12px rgba(0,229,204,.55)}
.nav-link.active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-4px;width:32px;height:3px;border-radius:99px;background:var(--accent-cyan);box-shadow:0 0 10px var(--accent-cyan)}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;background:var(--accent-gold);color:var(--primary-dark);font-weight:700;font-size:15px;border-radius:12px;transition:background .2s,box-shadow .2s,transform .2s;white-space:nowrap}
.nav-cta:hover{background:#FF9500;color:var(--primary-dark);box-shadow:0 0 0 3px rgba(255,181,71,.35)}
.nav-cta:active{transform:scale(.98)}
.hamburger{display:none;flex-direction:column;justify-content:center;align-items:center;width:44px;height:44px;background:transparent;border:none;cursor:pointer;gap:6px;border-radius:10px}
.hamburger span{display:block;width:24px;height:2px;background:var(--accent-cyan);border-radius:2px;transition:all .3s ease}
.mobile-panel{display:none;position:fixed;inset:0;z-index:99;background:rgba(10,14,23,.97);backdrop-filter:blur(8px);flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px}
.mobile-panel.open{display:flex}
.mobile-panel a{color:var(--text-on-dark);font-size:24px;font-weight:600;padding:10px 24px;border-radius:12px}
.mobile-panel a:hover{color:var(--accent-cyan)}
.mobile-panel a.active{color:var(--accent-cyan);border-bottom:3px solid var(--accent-cyan)}
.mobile-panel .panel-contact{margin-top:24px;color:var(--text-dark-muted);font-size:14px;text-align:center}

/* ===== Hero ===== */
.page-hero{position:relative;padding:110px 0 80px;background:var(--bg-dark);overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-120px;right:-120px;width:500px;height:500px;background:radial-gradient(circle,rgba(0,229,204,.25),transparent 60%);pointer-events:none}
.page-hero::after{content:"";position:absolute;bottom:-80px;left:-80px;width:380px;height:380px;background:radial-gradient(circle,rgba(255,181,71,.16),transparent 60%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:64px;align-items:center}
.hero-content .badge{margin-bottom:20px}
.hero-title{font-size:clamp(2.4rem,4vw,3.4rem);font-weight:800;color:var(--text-on-dark);line-height:1.2;margin-bottom:20px}
.hero-title .text-gold{font-family:var(--font-num)}
.hero-sub{font-size:1.15rem;color:var(--text-dark-muted);line-height:1.7;margin-bottom:32px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;border-radius:12px;font-weight:700;font-size:16px;cursor:pointer;border:none;transition:all .2s ease;text-decoration:none;gap:8px}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent-gold);color:var(--primary-dark);box-shadow:0 4px 20px rgba(255,181,71,.3)}
.btn-primary:hover{background:#FF9500;color:var(--primary-dark);box-shadow:0 0 0 3px rgba(255,181,71,.35)}
.btn-outline{background:transparent;color:var(--accent-cyan);border:1.5px solid var(--accent-cyan);box-shadow:none}
.btn-outline:hover{background:rgba(0,229,204,.08);color:var(--accent-cyan);box-shadow:0 0 0 3px rgba(0,229,204,.18)}
.hero-data{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.data-card{background:rgba(11,27,51,.6);border:1px solid rgba(0,229,204,.18);border-radius:var(--radius-lg);padding:24px 20px;backdrop-filter:blur(6px)}
.data-label{font-size:12px;font-weight:600;letter-spacing:1px;color:var(--accent-cyan);text-transform:uppercase;margin-bottom:6px;display:block}
.data-num{font-family:var(--font-num);font-size:2.4rem;font-weight:700;color:var(--accent-gold);line-height:1.1}
.data-desc{font-size:14px;color:var(--text-dark-muted);margin-top:6px}

/* ===== Main Content Grid ===== */
.main-grid{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:start}
.content-main{padding-top:10px}
.content-main h2{font-size:2rem;font-weight:800;line-height:1.3;margin:0 0 14px;color:var(--text-main)}
.content-main h3{font-size:1.3rem;font-weight:700;line-height:1.4;margin:0 0 12px;color:var(--text-main)}
.content-main p{color:var(--text-muted);margin-bottom:1.2em;line-height:1.85}
.content-block{margin-bottom:56px}
.section-tag{display:inline-block;padding:4px 14px;border-radius:999px;background:rgba(0,229,204,.1);border:1px solid rgba(0,229,204,.3);color:var(--primary-teal);font-size:12px;font-weight:600;letter-spacing:.5px;margin-bottom:16px}
.module-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:24px}
.module-card{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-md);padding:28px 24px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease}
.module-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.module-card .icon{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--primary-teal),var(--accent-cyan));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;margin-bottom:14px}
.module-card h4{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.module-card p{font-size:14px;color:var(--text-muted);line-height:1.65;margin:0}
.process-list{margin-top:28px;display:grid;grid-template-columns:repeat(2,1fr);gap:20px;counter-reset:step}
.process-item{background:var(--bg-section);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:28px 24px;position:relative;overflow:hidden}
.process-item::before{counter-increment:step;content:"0" counter(step);position:absolute;right:14px;top:8px;font-family:var(--font-num);font-size:3rem;font-weight:800;color:rgba(11,27,51,.06)}
.process-item h4{font-size:1.05rem;font-weight:700;margin-bottom:8px;position:relative;z-index:1}
.process-item p{font-size:14px;color:var(--text-muted);position:relative;z-index:1;margin:0}
.guarantee-list{margin-top:20px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.guarantee-item{display:flex;align-items:flex-start;gap:12px;padding:16px;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--border-light)}
.guarantee-item .check{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:rgba(0,229,204,.15);color:var(--primary-teal);display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700}
.guarantee-item .text{font-size:14px;color:var(--text-muted);line-height:1.5}

/* ===== Sidebar ===== */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-md);padding:28px 24px;box-shadow:var(--shadow-card)}
.side-card .card-title{font-size:1.05rem;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.side-card .card-title i{color:var(--primary-teal)}
.side-card ul li{margin-bottom:10px;padding-left:16px;position:relative}
.side-card ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent-cyan)}
.side-card ul li a{font-size:14px;color:var(--text-main);transition:color .2s}
.side-card ul li a:hover{color:var(--accent-cyan)}
.side-card ul li span{font-size:14px;color:var(--text-muted)}
.side-card .divider{border:none;border-top:1px solid var(--border-light);margin:18px 0}
.side-img{border-radius:var(--radius-md);overflow:hidden;position:relative;margin-bottom:14px}
.side-img img{width:100%;height:140px;object-fit:cover}
.side-img .img-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,14,23,.75));display:flex;align-items:flex-end;padding:14px;color:var(--text-on-dark);font-size:13px;font-weight:600}
.side-stats{display:flex;flex-direction:column;gap:12px}
.side-stat{display:flex;align-items:center;gap:12px}
.side-stat .num{font-family:var(--font-num);font-size:1.5rem;font-weight:700;color:var(--primary-teal);min-width:60px}
.side-stat .text{font-size:13px;color:var(--text-muted);line-height:1.4}

/* ===== Feature Banner ===== */
.feature-banner{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:100px 0;overflow:hidden}
.feature-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,14,23,.88),rgba(11,27,51,.72));pointer-events:none}
.feature-inner{position:relative;z-index:2;max-width:640px}
.feature-inner .badge{margin-bottom:16px}
.feature-inner h2{font-size:clamp(1.8rem,3vw,2.6rem);color:var(--text-on-dark);font-weight:800;line-height:1.3;margin-bottom:16px}
.feature-inner p{color:var(--text-dark-muted);font-size:1.05rem;margin-bottom:28px;line-height:1.7}
.feature-inner .btn{margin-right:12px}

/* ===== FAQ ===== */
.faq-section{background:var(--bg-light);position:relative}
.faq-inner{max-width:860px;margin:0 auto}
.faq-inner .section-title{text-align:center;margin-bottom:48px}
.faq-inner .section-title h2{font-size:2.2rem;font-weight:800;margin-bottom:8px}
.faq-inner .section-title p{color:var(--text-muted);font-size:15px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--bg-dark);border-radius:var(--radius-md);border:1px solid rgba(255,255,255,.06);overflow:hidden;transition:border-color .25s}
.faq-item.open{border-color:var(--border-dark)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;color:var(--text-on-dark);font-size:1rem;font-weight:600;gap:16px;user-select:none}
.faq-q .arrow{flex-shrink:0;width:28px;height:28px;border-radius:8px;background:rgba(0,229,204,.1);color:var(--accent-cyan);display:flex;align-items:center;justify-content:center;font-size:1rem;transition:all .3s ease}
.faq-item.open .arrow{transform:rotate(45deg);background:rgba(0,229,204,.2)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--text-dark-muted);font-size:15px;line-height:1.75;padding:0 24px}
.faq-item.open .faq-a{max-height:400px;padding:0 24px 24px;border-top:1px solid rgba(0,229,204,.18);padding-top:16px}
.faq-a p{margin-bottom:.5em}

/* ===== CTA / Contact ===== */
.cta-section{position:relative;padding:110px 0;background:linear-gradient(135deg,var(--primary-dark),var(--primary-mid),var(--primary-teal));overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-100px;right:-80px;width:420px;height:420px;background:radial-gradient(circle,rgba(0,229,204,.22),transparent 60%);pointer-events:none}
.cta-section::after{content:"";position:absolute;bottom:-100px;left:-80px;width:420px;height:420px;background:radial-gradient(circle,rgba(255,181,71,.15),transparent 60%);pointer-events:none}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-card{background:#fff;border-radius:var(--radius-lg);padding:48px;box-shadow:var(--shadow-dark)}
.cta-card .section-title{text-align:center;margin-bottom:32px}
.cta-card .section-title h2{font-size:1.8rem;font-weight:800;margin-bottom:8px}
.cta-card .section-title p{color:var(--text-muted);font-size:14px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--text-main)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:14px 16px;border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--bg-light);font-size:15px;color:var(--text-main);transition:border-color .2s,box-shadow .2s;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 4px rgba(0,229,204,.18)}
.form-group textarea{resize:vertical;min-height:100px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-submit{width:100%;padding:16px;background:var(--accent-gold);color:var(--primary-dark);font-weight:700;font-size:16px;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:background .2s,box-shadow .2s,transform .2s}
.form-submit:hover{background:#FF9500;box-shadow:0 0 0 4px rgba(255,181,71,.3)}
.form-submit:active{transform:scale(.98)}
.form-privacy{text-align:center;font-size:13px;color:var(--text-weak);margin-top:16px}
.contact-info{display:flex;justify-content:center;gap:32px;margin-top:24px;color:var(--text-dark-muted);font-size:14px;flex-wrap:wrap}
.contact-info i{color:var(--accent-cyan);margin-right:6px}

/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:var(--text-dark-muted);padding:72px 0 0;border-top:1px solid var(--border-dark)}
.footer-grid{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.4fr .8fr 1fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:16px;color:var(--text-dark-muted)}
.footer-col h4{font-size:16px;font-weight:700;color:var(--text-on-dark);margin-bottom:18px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul li a{color:var(--text-dark-muted);transition:color .2s}
.footer-col ul li a:hover{color:var(--accent-cyan)}
.footer-contact li{display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--accent-cyan);width:16px;text-align:center}
.footer-bottom{border-top:1px solid var(--border-dark);padding:20px 24px;text-align:center;font-size:13px;color:var(--text-dark-muted)}
.footer-bottom p{max-width:1200px;margin:0 auto}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .container,.header-inner,.footer-grid{max-width:1000px}
  .main-grid{grid-template-columns:1fr 320px;gap:32px}
  .module-list{grid-template-columns:1fr 1fr;gap:16px}
}
@media (max-width:991px){
  :root{--space-section:64px}
  .header-inner{height:64px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .hamburger{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:20px}
  .hero-data{grid-template-columns:1fr 1fr}
  .main-grid{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 calc(50% - 12px)}
  .module-list{grid-template-columns:1fr 1fr}
  .process-list{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--space-section:48px}
  .header-inner{height:60px;padding:0 16px}
  .logo-text{font-size:.95rem}
  .page-hero{padding:64px 0 56px}
  .hero-title{font-size:2rem}
  .hero-sub{font-size:1rem}
  .hero-data{grid-template-columns:1fr 1fr;gap:12px}
  .data-card{padding:18px 14px}
  .data-num{font-size:1.8rem}
  .module-list{grid-template-columns:1fr}
  .process-list{grid-template-columns:1fr}
  .guarantee-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sidebar{flex-direction:column}
  .side-card{flex:1 1 auto}
  .form-row{grid-template-columns:1fr}
  .cta-card{padding:32px 24px}
  .feature-banner{padding:64px 0}
  .content-main h2{font-size:1.55rem}
  .faq-q{font-size:.95rem;padding:16px 18px}
  .faq-item.open .faq-a{padding:14px 18px 18px;font-size:14px}
  .btn{width:100%;justify-content:center}
  .hero-actions{flex-direction:column}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .hero-data{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand p{font-size:13px}
  .contact-info{flex-direction:column;gap:8px;align-items:center}
}

/* roulang page: article */
:root {
  --primary-dark: #0B1B33;
  --primary-mid: #0E4B5A;
  --primary-teal: #147C7A;
  --accent-neon: #00E5CC;
  --accent-gold: #FFB547;
  --bg-light: #F7F9FC;
  --bg-subtle: #F0F4F8;
  --bg-dark: #0A0E17;
  --text-main: #13293D;
  --text-secondary: #5A6B7B;
  --text-muted: #A0AAB5;
  --text-on-dark: #E8F3F3;
  --text-on-dark-muted: #7C8EA0;
  --border-light: #E2E8F0;
  --border-dark: rgba(0, 229, 204, 0.18);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 10px 30px rgba(11, 27, 51, 0.08);
  --shadow-card-hover: 0 16px 40px rgba(11, 27, 51, 0.14);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", "SFMono-Regular", monospace;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); font-size: 16px; line-height: 1.75; color: var(--text-main); background: var(--bg-light); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--accent-neon); outline-offset: 2px; box-shadow: 0 0 0 4px rgba(0, 229, 204, 0.18); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 920px; margin: 0 auto; padding: 0 24px; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; line-height: 1.4; min-height: 46px; transition: all .2s ease; border: 2px solid transparent; }
.btn:active { transform: scale(0.98); }
.btn-gold { background: var(--accent-gold); color: var(--primary-dark); border-color: var(--accent-gold); }
.btn-gold:hover { background: #FF9500; border-color: #FF9500; box-shadow: 0 0 0 4px rgba(255, 181, 71, 0.3); color: var(--primary-dark); }
.btn-outline { border-color: var(--accent-neon); color: var(--accent-neon); background: transparent; }
.btn-outline:hover { background: rgba(0, 229, 204, 0.08); border-color: var(--accent-neon); color: var(--accent-neon); }
.btn-outline-light { border-color: var(--text-on-dark); color: var(--text-on-dark); background: transparent; }
.btn-outline-light:hover { border-color: var(--accent-neon); color: var(--accent-neon); background: rgba(0, 229, 204, 0.08); }

/* ---------- Header / 导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 1000; height: 72px; background: rgba(10, 14, 23, 0.94); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(229, 255, 250, 0.09); display: flex; align-items: center; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, #0B1B33 0%, #0E4B5A 50%, #147C7A 100%); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--accent-neon); font-size: 16px; border: 1px solid rgba(0, 229, 204, 0.35); box-shadow: 0 0 16px rgba(0, 229, 204, 0.2); }
.logo-text { color: #fff; font-weight: 700; font-size: 19px; letter-spacing: .5px; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { color: var(--text-on-dark); font-size: 15px; font-weight: 400; padding: 8px 2px; position: relative; transition: color .2s ease, text-shadow .2s ease; }
.nav-link:hover { color: var(--accent-neon); }
.nav-link.active { color: var(--accent-neon); text-shadow: 0 0 12px rgba(0, 229, 204, 0.55); }
.nav-link.active::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 100%; height: 3px; background: var(--accent-neon); border-radius: 99px; box-shadow: 0 0 10px rgba(0, 229, 204, 0.55); }
.header-cta { display: flex; align-items: center; }
.header-cta .btn { padding: 9px 24px; min-height: 42px; font-size: 14px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; align-items: center; justify-content: center; background: transparent; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--accent-neon); border-radius: 2px; transition: all .3s ease; }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu { display: none; position: fixed; inset: 0; z-index: 999; background: rgba(10, 14, 23, 0.97); flex-direction: column; align-items: center; justify-content: center; gap: 28px; opacity: 0; pointer-events: none; transition: opacity .3s ease; }
.mobile-menu.is-open { opacity: 1; pointer-events: auto; }
.mobile-menu a { color: #fff; font-size: 22px; padding: 12px 20px; border-radius: 12px; transition: color .2s ease; }
.mobile-menu a:hover, .mobile-menu a.active { color: var(--accent-neon); box-shadow: inset 0 -2px 0 var(--accent-neon); }
.mobile-menu .mobile-contact { margin-top: 20px; text-align: center; color: var(--text-on-dark-muted); font-size: 14px; }
.mobile-menu .mobile-contact p { margin-bottom: 6px; }

/* ---------- 文章头部 Hero ---------- */
.article-hero { background: linear-gradient(135deg, #0B1B33 0%, #0E4B5A 58%, #147C7A 100%); padding: 56px 0 52px; position: relative; overflow: hidden; }
.article-hero::before { content: ''; position: absolute; top: -150px; right: -80px; width: 360px; height: 360px; background: radial-gradient(circle, rgba(0, 229, 204, 0.22), transparent 70%); border-radius: 50%; }
.article-hero::after { content: ''; position: absolute; bottom: -120px; left: -60px; width: 260px; height: 260px; background: radial-gradient(circle, rgba(255, 181, 71, 0.18), transparent 72%); border-radius: 50%; }
.article-hero .container-narrow { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 14px; color: rgba(232, 243, 243, 0.72); }
.breadcrumb a { color: rgba(232, 243, 243, 0.82); }
.breadcrumb a:hover { color: var(--accent-neon); }
.breadcrumb-sep { opacity: .45; }
.breadcrumb-current { color: var(--accent-neon); }
.article-cat-pill { display: inline-flex; align-items: center; padding: 6px 18px; border: 1px solid var(--accent-neon); border-radius: 999px; color: var(--accent-neon); font-size: 13px; font-weight: 600; margin: 22px 0 14px; letter-spacing: .4px; background: rgba(0, 229, 204, 0.08); }
.article-hero h1 { font-size: clamp(1.8rem, 3vw, 2.6rem); line-height: 1.25; font-weight: 700; color: #fff; margin-bottom: 18px; max-width: 760px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: rgba(232, 243, 243, 0.76); }
.article-meta i { margin-right: 6px; color: var(--accent-neon); }

/* ---------- 封面图 ---------- */
.article-cover { margin-top: 36px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35); border: 1px solid var(--border-dark); background: rgba(255, 255, 255, 0.06); }
.article-cover img { width: 100%; height: auto; min-height: 240px; object-fit: cover; }

/* ---------- 正文区 ---------- */
.article-body-wrap { background: var(--bg-light); padding: 64px 0 40px; }
.article-body { background: #fff; border-radius: var(--radius-lg); padding: 56px 56px 48px; box-shadow: var(--shadow-card); border: 1px solid var(--border-light); }
.article-body h2 { font-size: 28px; font-weight: 700; color: var(--text-main); line-height: 1.35; margin: 42px 0 16px; padding-top: 8px; }
.article-body h3 { font-size: 22px; font-weight: 600; color: var(--text-main); margin: 30px 0 12px; }
.article-body h4 { font-size: 18px; font-weight: 600; color: var(--text-main); margin: 24px 0 10px; }
.article-body p { font-size: 16px; line-height: 1.75; color: var(--text-secondary); margin-bottom: 1.5em; }
.article-body ul, .article-body ol { margin: 16px 0 24px; padding-left: 24px; color: var(--text-secondary); }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 6px; }
.article-body strong { color: var(--text-main); font-weight: 600; }
.article-body blockquote { border-left: 4px solid var(--accent-neon); background: #EFFAF8; padding: 24px 28px; border-radius: 0 12px 12px 0; margin: 28px 0; color: var(--text-main); font-size: 16px; }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body img { border-radius: var(--radius-md); margin: 24px 0; }
.article-body img + em, .article-body figure figcaption { display: block; text-align: center; font-size: 13px; color: var(--text-muted); font-style: normal; margin-top: -12px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 15px; }
.article-body table th { background: #EFFAF8; font-weight: 600; text-align: left; color: var(--text-main); }
.article-body table th, .article-body table td { padding: 12px 16px; border: 1px solid var(--border-light); }
.article-body table tr:hover td { background: #FAFCFE; }
.article-body a { color: var(--primary-teal); text-decoration: underline; text-decoration-color: rgba(20, 124, 122, 0.3); text-underline-offset: 3px; }
.article-body a:hover { color: var(--accent-neon); text-decoration-color: var(--accent-neon); }
.article-body hr { border: none; border-top: 1px solid var(--border-light); margin: 36px 0; }

/* ---------- 标签 ---------- */
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--border-light); }
.tag { display: inline-flex; align-items: center; padding: 6px 16px; border-radius: 999px; background: var(--bg-subtle); border: 1px solid var(--border-light); color: var(--text-secondary); font-size: 13px; font-weight: 500; transition: all .2s ease; }
.tag:hover { border-color: var(--accent-neon); color: var(--primary-teal); background: #EFFAF8; }

/* ---------- 上一篇 / 下一篇 ---------- */
.article-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px; }
.pager-card { display: flex; flex-direction: column; gap: 6px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-md); padding: 20px 24px; transition: all .25s ease; }
.pager-card:hover { border-color: var(--accent-neon); box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
.pager-label { font-size: 13px; color: var(--text-muted); }
.pager-label i { margin-right: 6px; }
.pager-title { font-size: 16px; font-weight: 600; color: var(--text-main); line-height: 1.45; }
.pager-card:hover .pager-title { color: var(--primary-teal); }
.pager-next { text-align: right; }

/* ---------- 返回入口 ---------- */
.article-back { text-align: center; margin-top: 40px; }

/* ---------- 内容未找到 ---------- */
.article-not-found { background: #fff; border-radius: var(--radius-lg); padding: 64px 40px; text-align: center; box-shadow: var(--shadow-card); border: 1px solid var(--border-light); }
.article-not-found .notfound-icon { width: 72px; height: 72px; border-radius: 50%; background: #EFFAF8; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 26px; color: var(--primary-teal); }
.article-not-found h2 { font-size: 28px; font-weight: 700; color: var(--text-main); margin-bottom: 12px; }
.article-not-found p { font-size: 15px; color: var(--text-secondary); max-width: 420px; margin: 0 auto 24px; }

/* ---------- 相关阅读 ---------- */
.related-section { background: var(--bg-subtle); padding: 72px 0 64px; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .section-label { display: inline-flex; align-items: center; padding: 5px 16px; border-radius: 999px; background: rgba(0, 229, 204, 0.12); border: 1px solid rgba(0, 229, 204, 0.35); color: var(--primary-teal); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.section-head h2 { font-size: 32px; font-weight: 700; color: var(--text-main); line-height: 1.3; margin-bottom: 8px; }
.section-head p { font-size: 15px; color: var(--text-secondary); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.related-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-light); box-shadow: var(--shadow-card); transition: all .3s ease; display: flex; flex-direction: column; }
.related-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-5px); border-color: rgba(0, 229, 204, 0.5); }
.related-card .img-wrap { aspect-ratio: 16 / 9; overflow: hidden; background: linear-gradient(135deg, var(--primary-dark), var(--primary-teal)); }
.related-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.related-card:hover .img-wrap img { transform: scale(1.04); }
.related-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.related-date { font-family: var(--font-num); font-size: 13px; color: var(--text-muted); margin-bottom: 8px; letter-spacing: .3px; }
.related-body h3 { font-size: 19px; font-weight: 600; color: var(--text-main); line-height: 1.45; margin-bottom: 10px; }
.related-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; flex: 1; }
.related-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary-teal); margin-top: 16px; }
.related-link i { transition: transform .2s ease; }
.related-card:hover .related-link i { transform: translateX(4px); }

/* ---------- CTA 区块 ---------- */
.cta-section { background: linear-gradient(135deg, #0B1B33 0%, #0E4B5A 55%, #147C7A 100%); padding: 72px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -80px; right: 10%; width: 300px; height: 300px; background: radial-gradient(circle, rgba(0, 229, 204, 0.18), transparent 70%); border-radius: 50%; }
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 700; color: #fff; margin-bottom: 10px; line-height: 1.35; }
.cta-text p { font-size: 15px; color: rgba(232, 243, 243, 0.76); max-width: 520px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.cta-actions .btn { min-width: 148px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--bg-dark); padding: 64px 0 0; border-top: 1px solid var(--border-dark); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 52px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-on-dark-muted); line-height: 1.75; margin-top: 14px; max-width: 320px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; letter-spacing: .4px; }
.footer-col ul li { margin-bottom: 10px; font-size: 14px; color: var(--text-on-dark-muted); line-height: 1.6; }
.footer-col ul li a { color: var(--text-on-dark-muted); }
.footer-col ul li a:hover { color: var(--accent-neon); }
.footer-contact li i { margin-right: 8px; color: var(--accent-neon); width: 16px; }
.footer-bottom { border-top: 1px solid rgba(229, 255, 250, 0.08); padding: 22px 0; text-align: center; font-size: 13px; color: var(--text-on-dark-muted); }

/* ---------- 响应式 ---------- */
@media (max-width: 1199px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 991px) {
  .nav-links, .header-cta { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-menu { display: flex; }
  .article-body { padding: 40px 32px; }
  .related-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 767px) {
  .site-header { height: 60px; }
  .logo-text { font-size: 16px; }
  .logo-icon { width: 34px; height: 34px; font-size: 14px; }
  .article-hero { padding: 40px 0 36px; }
  .article-hero h1 { font-size: 24px; line-height: 1.35; }
  .article-meta { gap: 12px; row-gap: 8px; font-size: 13px; }
  .article-body-wrap { padding: 40px 0 32px; }
  .article-body { padding: 28px 20px; border-radius: var(--radius-md); }
  .article-body h2 { font-size: 22px; }
  .article-body h3 { font-size: 18px; }
  .article-body p, .article-body li, .article-body blockquote { font-size: 15px; }
  .article-body table { font-size: 13px; }
  .article-body table th, .article-body table td { padding: 8px 10px; }
  .article-pager { grid-template-columns: 1fr; gap: 16px; }
  .pager-next { text-align: left; }
  .related-section { padding: 56px 0 48px; }
  .section-head h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-section { padding: 52px 0; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .article-back .btn { width: 100%; max-width: 260px; }
}
@media (max-width: 575px) {
  .container { padding: 0 18px; }
  .article-body { padding: 24px 16px; }
  .article-tags { gap: 8px; }
  .related-body { padding: 18px; }
}

/* roulang page: category2 */
/* ===== Design Variables ===== */
:root {
  --c-primary-900: #0B1B33;
  --c-primary-800: #0E4B5A;
  --c-primary-700: #147C7A;
  --c-neon: #00E5CC;
  --c-gold: #FFB547;
  --c-gold-deep: #FF9500;
  --c-bg-light: #F7F9FC;
  --c-bg-secondary: #F0F4F8;
  --c-bg-dark: #0A0E17;
  --c-text: #13293D;
  --c-text-secondary: #5A6B7B;
  --c-text-muted: #A0AAB5;
  --c-text-dark: #E8F3F3;
  --c-text-dark-muted: #7C8EA0;
  --c-border: #E2E8F0;
  --c-border-dark: rgba(0, 229, 204, 0.18);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px rgba(11, 27, 51, 0.08);
  --shadow-card-hover: 0 16px 40px rgba(11, 27, 51, 0.14);
  --shadow-dark: 0 20px 48px rgba(0, 0, 0, 0.35);
  --gradient-brand: 135deg, #0B1B33 0%, #0E4B5A 55%, #147C7A 100%;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", monospace;
  --space-section: 96px;
  --space-section-tablet: 64px;
  --space-section-mobile: 48px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg-light);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 200ms ease;
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-text);
}

:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(0, 229, 204, 0.18);
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 72px;
  background: var(--c-bg-dark);
  border-bottom: 1px solid var(--c-border-dark);
  display: flex;
  align-items: center;
  transition: background 300ms ease, box-shadow 300ms ease;
}

.site-header.scrolled {
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: 100%;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-neon);
  font-size: 17px;
  box-shadow: 0 0 18px rgba(0, 229, 204, 0.25);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  position: relative;
  padding: 8px 18px;
  font-size: 15px;
  color: var(--c-text-dark);
  border-radius: var(--radius-pill);
  transition: color 200ms, text-shadow 200ms;
}

.nav-link:hover {
  color: var(--c-neon);
  text-shadow: 0 0 12px rgba(0, 229, 204, 0.55);
}

.nav-link.active {
  color: var(--c-neon);
  text-shadow: 0 0 12px rgba(0, 229, 204, 0.55);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--c-neon);
  box-shadow: 0 0 12px rgba(0, 229, 204, 0.7);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 200ms ease;
  line-height: 1.4;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-gold {
  background: var(--c-gold);
  color: var(--c-primary-900);
  border-color: var(--c-gold);
}

.btn-gold:hover {
  background: var(--c-gold-deep);
  border-color: var(--c-gold-deep);
  color: var(--c-primary-900);
  box-shadow: 0 0 0 3px rgba(255, 181, 71, 0.4);
  transform: translateY(-2px);
}

.btn-gold:active {
  transform: scale(0.98);
}

.btn-gold.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}

.btn-outline-neon {
  background: transparent;
  border-color: var(--c-neon);
  color: var(--c-neon);
}

.btn-outline-neon:hover {
  background: rgba(0, 229, 204, 0.08);
  border-color: var(--c-neon);
  color: var(--c-neon);
  box-shadow: 0 0 18px rgba(0, 229, 204, 0.2);
  transform: translateY(-2px);
}

.btn-outline-neon:active {
  transform: scale(0.98);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--c-border-dark);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-neon);
  transition: all 250ms ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10, 14, 23, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  font-size: 24px;
  font-weight: 600;
  color: #fff;
  padding: 14px 20px;
  border-bottom: 2px solid transparent;
  transition: color 200ms, border-color 200ms;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

.mobile-menu .mobile-contact {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border-dark);
  text-align: center;
  color: var(--c-text-dark-muted);
  font-size: 14px;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background: var(--c-bg-dark);
  background-image: linear-gradient(rgba(10, 14, 23, 0.55), rgba(10, 14, 23, 0.72)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 88px 0 72px;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(0, 229, 204, 0.12);
  filter: blur(80px);
  pointer-events: none;
}

.page-banner::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: 10%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 181, 71, 0.1);
  filter: blur(70px);
  pointer-events: none;
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-text-dark-muted);
  margin-bottom: 18px;
}

.breadcrumb a {
  color: var(--c-text-dark-muted);
  transition: color 200ms;
}

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

.breadcrumb .sep {
  color: var(--c-text-dark-muted);
  opacity: 0.5;
}

.page-banner h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.page-banner .banner-desc {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text-dark);
  opacity: 0.85;
}

.banner-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0, 229, 204, 0.35);
  color: var(--c-neon);
  background: rgba(0, 229, 204, 0.06);
  letter-spacing: 0.5px;
}

/* ===== Section common ===== */
.section {
  padding: var(--space-section) 0;
}

.section-alt {
  background: var(--c-bg-secondary);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-neon);
  background: rgba(0, 229, 204, 0.1);
  border: 1px solid rgba(0, 229, 204, 0.2);
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--c-text);
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--c-text-secondary);
  line-height: 1.75;
}

/* ===== Card Grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.guide-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(0, 229, 204, 0.4);
}

.guide-card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gradient-brand);
}

.guide-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.guide-card:hover .guide-card-img img {
  transform: scale(1.04);
}

.guide-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11, 27, 51, 0.4));
}

.guide-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-card-body h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--c-text);
}

.guide-card-body p {
  font-size: 14px;
  color: var(--c-text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.guide-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary-700);
  transition: color 200ms, gap 200ms;
}

.guide-card-link:hover {
  color: var(--c-neon);
}

.guide-card-link i {
  font-size: 13px;
  transition: transform 200ms;
}

.guide-card-link:hover i {
  transform: translateX(4px);
}

/* ===== Steps / Numbered List ===== */
.steps-section {
  background: var(--c-bg-dark);
  background-image: linear-gradient(var(--gradient-brand));
  position: relative;
  overflow: hidden;
}

.steps-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 204, 0.6), transparent);
}

.steps-section .section-title,
.steps-section .section-desc {
  color: var(--c-text-dark);
}

.steps-section .section-desc {
  color: var(--c-text-dark-muted);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step-item {
  position: relative;
  background: rgba(11, 27, 51, 0.55);
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
  counter-increment: step;
}

.step-item:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 204, 0.5);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 229, 204, 0.2);
}

.step-num {
  font-family: var(--font-num);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 14px;
  display: block;
}

.step-num::before {
  content: "0" counter(step);
}

.step-item h3 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 13px;
  color: var(--c-text-dark-muted);
  line-height: 1.65;
}

.step-arrow {
  position: absolute;
  top: 50%;
  right: -14px;
  transform: translateY(-50%);
  color: var(--c-neon);
  font-size: 14px;
  opacity: 0.7;
  z-index: 2;
}

/* ===== Comparison Table ===== */
.compare-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--c-border);
  background: #fff;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
}

.compare-table th {
  background: var(--c-bg-dark);
  color: var(--c-text-dark);
  font-size: 15px;
  font-weight: 600;
  padding: 20px 24px;
  text-align: center;
  border: 1px solid var(--c-border-dark);
}

.compare-table th:first-child {
  text-align: left;
  background: var(--c-primary-900);
}

.compare-table td {
  padding: 18px 24px;
  font-size: 14px;
  color: var(--c-text-secondary);
  border: 1px solid var(--c-border);
  text-align: center;
  line-height: 1.6;
}

.compare-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--c-text);
  background: var(--c-bg-light);
  font-size: 14px;
}

.compare-table tbody tr:first-child td:first-child {
  font-size: 15px;
}

.compare-table .check {
  color: var(--c-primary-700);
  font-size: 16px;
}

.compare-table .minus {
  color: var(--c-text-muted);
  font-size: 16px;
}

.compare-table .feature-head {
  font-weight: 700;
  color: var(--c-text);
}

.compare-highlight {
  background: rgba(0, 229, 204, 0.05);
}

/* ===== FAQ ===== */
.faq-section {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--c-bg-dark);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  border: 1px solid rgba(229, 255, 250, 0.08);
  overflow: hidden;
  transition: border-color 250ms, box-shadow 250ms;
}

.faq-item.active {
  border-color: rgba(0, 229, 204, 0.4);
  box-shadow: 0 0 24px rgba(0, 229, 204, 0.08);
}

.faq-question {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  text-align: left;
  transition: color 200ms;
}

.faq-question:hover {
  color: var(--c-neon);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid rgba(0, 229, 204, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--c-neon);
  transition: transform 250ms, background 250ms;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: rgba(0, 229, 204, 0.1);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--c-text-dark-muted);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 240px;
  border-top: 1px solid rgba(0, 229, 204, 0.15);
}

.faq-item.active .faq-answer-inner {
  padding-top: 20px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--c-bg-dark);
  background-image: linear-gradient(rgba(11, 27, 51, 0.85), rgba(10, 14, 23, 0.92)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -100px;
  right: 10%;
  width: 320px;
  height: 320px;
  background: rgba(0, 229, 204, 0.08);
  border-radius: 50%;
  filter: blur(80px);
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: 5%;
  width: 260px;
  height: 260px;
  background: rgba(255, 181, 71, 0.08);
  border-radius: 50%;
  filter: blur(70px);
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  color: #fff;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 16px;
  color: var(--c-text-dark-muted);
  line-height: 1.75;
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* ===== Contact Form ===== */
.contact-section {
  background: var(--gradient-brand);
  position: relative;
  padding: 88px 0;
}

.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 20%, rgba(0, 229, 204, 0.12) 0%, transparent 50%), radial-gradient(circle at 80% 80%, rgba(255, 181, 71, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.contact-wrapper {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
  padding: 48px;
}

.contact-wrapper .section-title {
  text-align: center;
  margin-bottom: 10px;
}

.contact-wrapper .section-desc {
  text-align: center;
  margin-bottom: 32px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  margin-bottom: 18px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 8px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-bg-light);
  font-size: 15px;
  color: var(--c-text);
  transition: border-color 200ms, box-shadow 200ms;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--c-neon);
  box-shadow: 0 0 0 4px rgba(0, 229, 204, 0.15);
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  grid-column: 1 / -1;
  margin-top: 8px;
}

.form-privacy {
  grid-column: 1 / -1;
  font-size: 13px;
  color: var(--c-text-muted);
  text-align: center;
  margin-top: 4px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-bg-dark);
  padding: 72px 0 0;
  border-top: 1px solid var(--c-border-dark);
}

.footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--c-text-dark-muted);
  line-height: 1.75;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--c-text-dark-muted);
}

.footer-col ul li a {
  color: var(--c-text-dark-muted);
  transition: color 200ms;
}

.footer-col ul li a:hover {
  color: var(--c-neon);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--c-neon);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid var(--c-border-dark);
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--c-text-dark-muted);
}

.footer-bottom p {
  max-width: 1240px;
  margin: 0 auto;
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 991px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .header-actions .btn-gold.btn-sm {
    display: none;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .step-arrow {
    display: none;
  }

  .compare-wrap {
    overflow-x: auto;
  }

  .compare-table {
    min-width: 640px;
  }

  .section {
    padding: var(--space-section-tablet) 0;
  }

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

  .form-field.full {
    grid-column: 1;
  }
}

@media (max-width: 767px) {
  .site-header {
    height: 60px;
  }

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

  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .page-banner {
    padding: 60px 0 48px;
  }

  .breadcrumb {
    font-size: 13px;
  }

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

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

  .section {
    padding: var(--space-section-mobile) 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .contact-wrapper {
    padding: 28px 20px;
    border-radius: var(--radius-md);
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-buttons .btn {
    width: 100%;
    max-width: 320px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
  }

  .footer-bottom {
    padding: 16px;
    font-size: 12px;
  }
}

@media (max-width: 575px) {
  .container {
    padding: 0 18px;
  }

  .header-inner {
    gap: 12px;
  }

  .logo-text {
    font-size: 15px;
  }

  .page-banner h1 {
    font-size: 1.7rem;
  }

  .page-banner .banner-desc {
    font-size: 14px;
  }

  .banner-pills {
    gap: 8px;
  }

  .pill {
    font-size: 12px;
    padding: 5px 12px;
  }

  .guide-card-body {
    padding: 18px;
  }

  .guide-card-body h3 {
    font-size: 18px;
  }

  .faq-question {
    font-size: 15px;
    padding: 18px 18px;
  }

  .faq-answer-inner {
    padding: 0 18px 20px;
  }

  .btn-lg {
    padding: 14px 28px;
  }

  .form-submit .btn {
    width: 100%;
  }
}