/* roulang page: index */
:root{--ink:#f4f7fb;--muted:#9aa8bc;--bg:#080d16;--panel:#101927;--panel2:#151f30;--line:rgba(255,255,255,.1);--cyan:#4de2d0;--orange:#ff9d5c;--radius:22px;--shadow:0 20px 60px rgba(0,0,0,.28);--max:1180px}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;width:100%;object-fit:cover}button{font:inherit;border:0;cursor:pointer}.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{height:78px;display:flex;align-items:center;border-bottom:1px solid var(--line);position:relative;z-index:5;background:rgba(8,13,22,.88);backdrop-filter:blur(16px)}.nav-inner{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:12px;align-items:center;font-weight:800;letter-spacing:.02em}.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--cyan);color:#071218;display:grid;place-items:center;font-weight:900}.brand small{display:block;color:var(--muted);font-size:10px;font-weight:500}.menu-btn{background:none;color:var(--ink);display:flex;align-items:center;gap:10px;padding:10px 0}.menu-icon{width:28px}.menu-icon i{height:2px;background:var(--cyan);display:block;margin:5px 0}.drawer{position:fixed;inset:0;background:rgba(5,9,16,.96);transform:translateX(100%);transition:.4s;z-index:20;padding:90px 8vw}.drawer:target{transform:translateX(0)}.drawer a{display:block;font-size:clamp(28px,5vw,54px);font-weight:800;border-bottom:1px solid var(--line);padding:14px 0}.close{position:absolute;right:8vw;top:30px;color:var(--orange);font-size:28px}
.hero{min-height:620px;display:flex;align-items:end;background:linear-gradient(90deg,rgba(8,13,22,.95) 15%,rgba(8,13,22,.58),rgba(8,13,22,.7)),url('/assets/images/396e1509417bca98.webp') center/cover}.hero-content{padding:100px 0 86px;max-width:800px}.eyebrow,.tag{color:var(--cyan);font-size:13px;letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(42px,7vw,86px);line-height:1.08;letter-spacing:-.05em;margin:18px 0}.hero p{max-width:720px;color:#d5deea;font-size:18px}.hero-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.pill,.btn{border:1px solid var(--line);border-radius:999px;padding:10px 18px}.btn{display:inline-flex;align-items:center;gap:8px;background:var(--cyan);color:#061317;font-weight:800;transition:.25s}.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(77,226,208,.22)}.btn.secondary{background:transparent;color:var(--ink)}
section{padding:92px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(28px,4vw,48px);line-height:1.2;letter-spacing:-.04em}.section-head p{max-width:500px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s}.card:hover{transform:translateY(-5px);border-color:rgba(77,226,208,.55);box-shadow:var(--shadow)}.card h3{font-size:21px;margin:12px 0 8px}.card p,.list p{color:var(--muted);font-size:14px}.number{font-size:42px;color:var(--orange);font-weight:800;line-height:1}.cover{height:190px;border-radius:16px;margin:-2px -2px 20px;overflow:hidden}.cover img{height:100%}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.metric{background:var(--panel);padding:28px}.metric strong{font-size:34px;color:var(--cyan);display:block}.metric span{color:var(--muted);font-size:13px}.dark{background:#0c1421}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.step{padding:24px;border-left:2px solid var(--cyan)}.step b{color:var(--orange);font-size:13px}.list{display:grid;gap:12px}.list-item{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.list-item h3{font-size:18px}.list-item time{color:var(--cyan);white-space:nowrap}.quote{font-size:24px;line-height:1.5}.cta{background:linear-gradient(105deg,#12313b,#172337);border:1px solid rgba(77,226,208,.35);border-radius:var(--radius);padding:55px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(28px,4vw,44px)}footer{padding:55px 0 25px;color:var(--muted)}.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:35px}.footer-links{display:flex;gap:22px}.copyright{border-top:1px solid var(--line);padding-top:20px;font-size:13px}
:focus-visible{outline:3px solid var(--orange);outline-offset:4px}
@media(max-width:800px){.grid,.grid.two{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:1fr 1fr}.hero{min-height:560px}.hero-content{padding:80px 0 60px}.cta,.footer-top{display:block}.footer-links{margin-top:24px}}
@media(max-width:520px){.container{width:min(100% - 28px,var(--max))}.site-header{height:68px}.brand{font-size:14px}.grid,.grid.two,.timeline{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:14px}.hero h1{font-size:43px}.hero p{font-size:16px}.metrics{grid-template-columns:1fr 1fr}.metric{padding:20px 14px}.metric strong{font-size:28px}.cta{padding:32px 24px}.footer-links{flex-wrap:wrap}}

/* roulang page: category1 */
:root{--ink:#f4f7fb;--muted:#9aa8bc;--bg:#080d16;--panel:#101927;--panel2:#151f30;--line:rgba(255,255,255,.1);--cyan:#4de2d0;--orange:#ff9d5c;--radius:22px;--shadow:0 20px 60px rgba(0,0,0,.28);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;width:100%;object-fit:cover}button{font:inherit;border:0;cursor:pointer}.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{height:78px;display:flex;align-items:center;border-bottom:1px solid var(--line);position:relative;z-index:5;background:rgba(8,13,22,.88);backdrop-filter:blur(16px)}.nav-inner{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:12px;align-items:center;font-weight:800;letter-spacing:.02em}.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--cyan);color:#071218;display:grid;place-items:center;font-weight:900}.brand small{display:block;color:var(--muted);font-size:10px;font-weight:500}.menu-btn{background:none;color:var(--ink);display:flex;align-items:center;gap:10px;padding:10px 0}.menu-icon{width:28px}.menu-icon i{height:2px;background:var(--cyan);display:block;margin:5px 0}.drawer{position:fixed;inset:0;background:rgba(5,9,16,.97);transform:translateX(100%);transition:.4s;z-index:20;padding:90px 8vw}.drawer:target{transform:translateX(0)}.drawer a{display:block;font-size:clamp(28px,5vw,54px);font-weight:800;border-bottom:1px solid var(--line);padding:14px 0}.drawer .close{font-size:14px;color:var(--cyan);border:0}
.hero{min-height:520px;display:flex;align-items:end;background:linear-gradient(90deg,rgba(8,13,22,.95) 10%,rgba(8,13,22,.6),rgba(8,13,22,.8)),url('/assets/images/2f221f9b54a598fe.webp') center/cover}.hero-content{padding:90px 0 72px;max-width:820px}.eyebrow,.tag{color:var(--cyan);font-size:13px;letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(42px,7vw,78px);line-height:1.08;letter-spacing:-.05em;margin:18px 0}.hero p{max-width:740px;color:#d5deea;font-size:18px}.hero-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.pill,.btn{border:1px solid var(--line);border-radius:999px;padding:10px 18px}.pill{color:#d5deea}.btn{display:inline-flex;align-items:center;gap:8px;background:var(--cyan);color:#061317;font-weight:800;transition:.25s}.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(77,226,208,.22)}.btn.secondary{background:transparent;color:var(--ink)}
section{padding:88px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(28px,4vw,48px);line-height:1.2;letter-spacing:-.04em;margin:0}.section-head p{max-width:520px;color:var(--muted);margin:0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s}.card:hover{transform:translateY(-5px);border-color:rgba(77,226,208,.55);box-shadow:var(--shadow)}.card h3{font-size:21px;margin:12px 0 8px}.card p{color:var(--muted);font-size:14px;margin:0}.cover{padding:0;overflow:hidden}.cover img{height:210px}.cover-body{padding:23px}.statbar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{padding:22px;background:var(--panel2);border:1px solid var(--line);border-radius:18px}.stat strong{display:block;font-size:32px;color:var(--cyan);line-height:1.2}.stat span{color:var(--muted);font-size:13px}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.step{position:relative;padding:20px 22px 20px 0;border-top:2px solid var(--cyan)}.step:not(:last-child){margin-right:20px}.step b{display:block;color:var(--orange);font-size:13px;margin-bottom:8px}.step h3{margin:0 0 7px}.step p{color:var(--muted);font-size:14px;margin:0}.list{display:grid;gap:0}.list-item{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.list-item h3{font-size:18px;margin:0}.list-item p{color:var(--muted);font-size:14px;margin:4px 0 0}.list-item time{color:var(--cyan);white-space:nowrap;font-size:13px}.quote{border-left:3px solid var(--orange);padding:8px 0 8px 25px;font-size:22px;color:#e7edf5}.faq{display:grid;gap:12px}.faq details{background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:18px 22px}.faq summary{cursor:pointer;font-weight:700}.faq p{color:var(--muted);margin:12px 0 0;font-size:14px}.cta{background:linear-gradient(105deg,#12313b,#172337);border:1px solid rgba(77,226,208,.35);border-radius:var(--radius);padding:50px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(28px,4vw,44px);margin:0 0 8px}.cta p{color:var(--muted);margin:0}.cta .btn{white-space:nowrap}footer{padding:55px 0 25px;color:var(--muted)}.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:35px}.footer-links{display:flex;gap:22px}.footer-links a:hover{color:var(--cyan)}.copyright{border-top:1px solid var(--line);padding-top:20px;font-size:13px}
@media(max-width:800px){.grid,.grid.two{grid-template-columns:1fr 1fr}.statbar{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:1fr 1fr}.cta,.footer-top{display:block}.footer-links{margin-top:24px}.cta .btn{margin-top:22px}}
@media(max-width:520px){.container{width:min(100% - 28px,var(--max))}.site-header{height:68px}.brand{font-size:14px}.grid,.grid.two,.timeline{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:14px}.hero{min-height:550px}.hero-content{padding:78px 0 58px}.hero h1{font-size:43px}.hero p{font-size:16px}.statbar{grid-template-columns:1fr 1fr}.stat{padding:18px 14px}.stat strong{font-size:27px}.list-item{display:block}.list-item time{display:block;margin-top:8px}.cta{padding:32px 24px}.footer-top{display:block}.footer-links{flex-wrap:wrap}}